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Watchdog with TPS3828

Alexander Bucher
Prodigy 90 points

Other Parts Discussed in Thread: TPS3828

Hi

I use an TMS320C28346ZFEQ together with a TPS3828 (Watchdog) in a circuit. At the beginning, the TMS320 reads the program out of an EEPROM over I2C. This process needs about 1.5 seconds. After that the program boots.

Everything runs well but I am not sure. Is that luck that the TPS3828 does not reset the TMS320 or will this work every time? In the data sheet of the TPS3828, the WDT window is specified with 0.9s to 2.5s. Maybe I have just caught the right chip. To prevent failures in the market, I am very interested at what time the WDT of the TPS3828 starts to count to be sure that the minimal window of 0.9s can be hold.

Regards

Alex